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comparison test/Transforms/ADCE/2002-07-17-PHIAssertion.ll @ 0:95c75e76d11b LLVM3.4

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LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
parents
children afa8332a0e37
comparison
equal deleted inserted replaced
-1:000000000000 0:95c75e76d11b
1 ; This testcase was extracted from the gzip SPEC benchmark
2 ;
3 ; RUN: opt < %s -adce
4
5 @bk = external global i32 ; <i32*> [#uses=2]
6 @hufts = external global i32 ; <i32*> [#uses=1]
7
8 define i32 @inflate() {
9 bb0:
10 br label %bb2
11
12 bb2: ; preds = %bb6, %bb0
13 %reg128 = phi i32 [ %reg130, %bb6 ], [ 0, %bb0 ] ; <i32> [#uses=2]
14 br i1 true, label %bb4, label %bb3
15
16 bb3: ; preds = %bb2
17 br label %UnifiedExitNode
18
19 bb4: ; preds = %bb2
20 %reg117 = load i32* @hufts ; <i32> [#uses=2]
21 %cond241 = icmp ule i32 %reg117, %reg128 ; <i1> [#uses=1]
22 br i1 %cond241, label %bb6, label %bb5
23
24 bb5: ; preds = %bb4
25 br label %bb6
26
27 bb6: ; preds = %bb5, %bb4
28 %reg130 = phi i32 [ %reg117, %bb5 ], [ %reg128, %bb4 ] ; <i32> [#uses=1]
29 br i1 false, label %bb2, label %bb7
30
31 bb7: ; preds = %bb6
32 %reg126 = load i32* @bk ; <i32> [#uses=1]
33 %cond247 = icmp ule i32 %reg126, 7 ; <i1> [#uses=1]
34 br i1 %cond247, label %bb9, label %bb8
35
36 bb8: ; preds = %bb8, %bb7
37 %reg119 = load i32* @bk ; <i32> [#uses=1]
38 %cond256 = icmp ugt i32 %reg119, 7 ; <i1> [#uses=1]
39 br i1 %cond256, label %bb8, label %bb9
40
41 bb9: ; preds = %bb8, %bb7
42 br label %UnifiedExitNode
43
44 UnifiedExitNode: ; preds = %bb9, %bb3
45 %UnifiedRetVal = phi i32 [ 7, %bb3 ], [ 0, %bb9 ] ; <i32> [#uses=1]
46 ret i32 %UnifiedRetVal
47 }
48